package com.spring.controller;

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.IncorrectCredentialsException;
import org.apache.shiro.authc.UnknownAccountException;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.subject.Subject;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

@Controller
public class MyController {
    @RequestMapping({"/", "/index"})
    public String toIndex(Model model) {
        model.addAttribute("msg", "hello,Shiro");
        return "index";
    }
    @RequestMapping("/user/add")
    public String add() {
        return "user/add";
    }
    @RequestMapping("/user/update")
    public String update() {
        return "user/update";
    }

    @RequestMapping("/toLogin")
    public String toLogin() {

        return "login";
    }

    @RequestMapping("/login")
    public String login(String username, String password,Model model) {

//        获取当前用户
        Subject subject = SecurityUtils.getSubject();
//        封装用户的登录数据
        UsernamePasswordToken token = new UsernamePasswordToken(username, password);
        try {
            subject.login(token);//执行登录方法，如果没有异常就说明ok了
            return "index";
        } catch (UnknownAccountException e) {//用户名不存在
            model.addAttribute("msg", "用户名错误");
            return "login";
        } catch (IncorrectCredentialsException e) {//密码不存在
            model.addAttribute("msg", "密码错误");
            return "login";
        }

    }
    @RequestMapping("/noauth")
    @ResponseBody
    public String Unauthorized() {
        return "未经授权无法访问此页面";

    }
    /**
     * 注销登陆
     *
     * @return
     */
    @RequestMapping("/logout")
    public String logout() {
        SecurityUtils.getSubject().logout();
        return "index";
    }
}
